Greece -
Ivory --> 10 GPT, 9 gold upfront
Then trade world maps immediately (same screen) for only 2 gold.
Rome -
Horses --> 15 GPT, (3 gold upfront) - 3 gold is optional if we want to trade spices
Spices --> 6 GPT
or
Spices --> WP, 3GPT, 30 gold
or
Spices --> 4GPT, 35 gold
*NOTE: Rome is at war with the Babylonians. Except for horses, it will take them 10 turns to reach Babylon through the rugged terrain (and through the Aztec homelands).
**NOTE: If we do go for the horse trade, after it's agreed, immediately trade:
Spices --> WP, 3GPT, 30 gold
China
Incense or Ivory --> 116 gold (150 in treasury)
India
Ivory --> WM, 17 gold (entire treasury)
Aztecs
Incense or Ivory --> 2 GPT, 30 gold
or
Incense or Ivory --> 36 gold (entire treasury)
Iroquois
Incense or Spices --> WM, 5 gold (entire treasury)
Zulus (too poor for viable trade. They want too many resources and gold for silks. They seem desperate.)
Incense, Spice or Ivory --> WM, 2 gold (entire treasury)